Grease-cup.



No. 632,480. Patented Sept. 5, |899.

J. TRIX.

GREASE CUP.

(Application filed Jan. 3, 1899.)

(No Model.)

LN' VEN TOR.

ttor/Ley Nirn- STATES JOHN TRIX, OF DETROIT, MICHIGAN.

GREASE-CUP.

SPECIFICATION forming part of Letters Patent No. 632,480, dated September 5, 1899.

Application led January 3, 1899.

To all whom, it 'nz/ty concer/2,:

Be it known that I, JOHN TRIX, of the city of Detroit, in the county of IVayne and State of Michigan, have invented a new and useful Improvement in Grease-Oups, of which the following is a specification.

My invention relates to grease-cups; and it consists in the construction hereinafter d'escribed, and defined in the claim.

Referring to the accompanying drawings, Figure lis an elevation, and Fig. 2 a plan, of a grease-cup embodying my invention. Fig. 3 is a vertical section of the same, the shaft being shown in full; and Fig. a is a section on the line a: x, Fig. l.

The same letters refer to the same parts in 'au the views.

A is a cup, B a piston therein, and O a stem rigidly secured to said piston and extending through a central aperture in the cup-coverD.

E is a spring acting to force the piston B down,'and thus cause the grease to iiow out of the cup and to be fed to the desired place.

F F' is a cylindrical handle provided at its center with a hub G, which is provided with a screw-threaded aperture, the threads of which engage with the threads of the stem O. By turning the handle in the opposite direction to the hands of a watch the hub G is raised from the cover D, and the spring E is then free to move the pistonB until said hub again strikes said cover. Thus bymeans of the handle F the movement of the piston B maybe restrained or limited. The stem O is somewhat flattened in cross-section along its length from a to a', as shown most distinctljy7 in Fig. 4. The handle F F' is hollowed out axially from one end nearly, but not quite, to the other end.

H is a compression coil-springin the hollow of the handle F F', one of its ends resting upon that portion of said handle which closes one end of said hollow.

I is a piston resting against the spring H at one end and being pressed against the stem C at the other end by the action of said spring. Said piston constitutes a dog adapted to act upon said stem to prevent accidental movement thereof.

do not claim this as my invention.

The method of adjusting the parts and the Serial No. 701,072. (No model.)

operation of the device is as follows: The spring H is placed in the hollow of the handle F F', and the piston I is placed against said spring and is forced in beyond the aperture in the hub G. The handle F F' is then screwed upon the stem C, holding the spring H compressed and the piston I in its position. The piston I being forced against the stem C by the elasticity of the spring H by coming against the flattened portion of said stem prevents said stem, and consequently the piston B, from being accidentally moved by the action of the spring E and any jarring that may occur. l

I am aware that a flattened screw-threaded stem has been used with a handle perforated from one end to the center, together with a compression-spring in said perforation, and In such construction it is necessary to close the open end of the hollow of the handle by a screwplug, which is liable to come out and be lost. By my improvements such screw-plug is dispensed with, the handle is lightened, and a strong, permanent, and convenient construction secured. A

Having fully described my invention, what I claim, and desire to secure by Letters Patent, ism

In a grease-cup of the kind described, the combination of the handle, F F', provided with an aperture toward its center extending transversely through said handle, the stem C, extending through said aperture, said handle being provided with a hollow extending from one end of said handle past said central aperture but not to the surface of said handle, a spring, H, in said hollow beyond said central aperture, and a dog, I, in said hollow -beyond said aperture, said spring being adapted to act by its elasticity against the closed end of said hollow and against said dog to press said dog against the stem, C, and said stem being adapted to be acted upon by said dog, substantially'as and for the purpose described.

JOHN TRIX.

Witnesses:

CHARLIE E. DAvEY, ELLIOTT J. STODDARD. 

